Device for setting saws



(No Model.) 2 Sheets-Sheet 1A C. MORRILL.

DEVICE EOE SETTING SAWS. No. 354,167. Patented Deo. 14, 1886.

(No Model.) 2 Sheets-Sheet 2.

- C. MOEEILL.

DEVICE EOE SETTING SAWS.

No. 354,167. Patented Dec. 14, 1886.

izq. f2.

CHARLES MORRILL, OF JERSEY CITY, NE\V JERSEY.

DEVICE FOR SETTING SAWS.

SPECIFICATION r'orminggpart of Letters Patent No, 354,167, dated December 14, 1886.

Application tiled March l., 1886.

To all whom it may concern,.-

Beitknown that l, CHARM-as Momma., a citizen of the United States, residing in Jersey City, in the county ot' Hudson and State of New Jersey, have invented certain new and useful Improvements in Tools for Setting Saws, of which the following is a description in such full, clear, exact, and concise terms as to enable any one skilled in the art to which my in'- vention belongs or with which it is most nearly connected to make and use the same, reference being had to the accompanying drawings, making part of this specitication, and to the letters and iigures of reference marked thereon.

Similar letters of reference indicate corresponding parts in all the figures of the drawings.

Figure l of said drawings is a top view, and Fig. 2 a side elevation, of said tool in its entirety. Fig. 3 is a horizontal section on the line or x, and Fig. 4 a Vertical. longitudinal section on the line y y. Fig. Gis a plan of thc tool viewed from the bottom side thereof, and Figs. 5, 7, S, 9, l0, and 1l are parts in detail, as hereinafter-desembed, the remaining figures of drawings being illustrations ot' what may be regarded as mere substitutes 'for the several parts of the tool described.

My invention consists of certain novel devices and combinations of devices comprising an improved tool for setting saws, the fea-v tures of novelty being designated in theclaims concluding this speciiication or description ot the tool as a whole.

A is a handlc,shaped like an ordinary plierhandle. In the top of this handle a socket, B, is formed, and within this socket a settingbloek, y, and a spiral spring` c, is set, and both of which are made to embrace a settingrod, D, two views of which are shown at Figs. 9 and l0. Through the bottom of the socket B a right-angular hole, E, is eut, as in Fig. l1,

and into this hole the lower end of the setting-rod D is snugly fitted, leaving it free, however, to rise and fall without pinching in the hole. To the lower end of the setting-rod D the cam-lever F is connected by a pin, G, the cam H acting as afulcruin against the outside faee, I, of the lower end ofthe socket B, by which the setting rod and block are drawn down by the lever F, the cam H sliding on the X Serial No. 193,925. (Nomodcl.)

face I as the rod moves up or down in the socket.

The ollice of the cam-lever is to force the setting-block down, while that of the spring is to raise it up to the position shown in the drawings.

Around the upper end of the setting-block y a series of setting-jaws, P l, are made, of dithirent lengths and widths, said setting-jaws being set upon a circle around the settingblock, but eccentric to its axis, so that as the setting-block is rotated around the setting-rod the setti iig-jaws project more or less over the anvil o, thus adapting the size of the settingjaws to the size of the saw-tooth to be set.

Immediately in front of the socket B the anvil o is made on the top side of the handle A, upon which the saw-teeth are set, the angle or amount of set being regulated by the angle of the plate Q, Yas hereinafter described.

In the top face of the setting-block there are cut a series of notches, Z, into any one of which the catch or projection m, made on the underside ofthe head not' therod D, is adapted to tit. Now, by pressing the settingblock down on the spring c the catch m is released from the notch Z, leaving the block free toturn on the rod until the next notch is caught by theprojection m,and so on around the entire periphery of the setting block, each notch bringing asetting-jaw of different length and breadth over the anvil, by which the tooth of the saw is nipped, held between the jaw and the anvil, and set. These setting-jaws, as before stated, are of various sizes around the periphery ot' the setting-block, and are made to harmonize in size and form with the saw-teeth to be set, be they coarse or tine.

To the anvil o, under the setting-jaws, is hinged at e an adj estable plate, Q, the top side of which is shown by Figs. 1 and 3, and the angle of which with reference to the face ofthe anvil is regulated by the adjusting-screw R. Now, by the angle ol` this plate with reference to the face of the anvil is regulated the amount of set to bc put in the saw, whether the same he coarse or tine.

The operation is as l'ollows: Let the plate Q be set at the desired angle and let the sawtooth be inserted on the plate undera suitable setting-jaw, P. As the rod D is drawn down by the lever F the jaw P will strike the saw- ICO , the same distance from the point.

the tooth at its base, bending it up, instead of to the inside or chamfered edge of the tooth, bending it down, as in ordinary saw-sets.. The effect of this tool is not only to set every tooth of the saw to the same degree, as in the ordinnary saw-set, but it also bends each tooth to the same degree on the same li-ne along the whole length of the saw. set bends each tooth over a given distance; but it does not make the angle of each toot-h The punch in the ordinary saw-set strikes first the point of the tooth, and bends the tooth over without determining exactly the point at which the metal must bend, Whereas in the set above described the setting force strikes first the base of the tooth at a given point and forces the tooth to bend at that point, and all the teeth exactly alike, the whole tooth being forced over to the desired angle, instead of the point ofthe tooth being merely bent over, as in the ordinary set. To this end it is not only desirable that the setting-jaw should first strike the base of the saw-tooth, but it is also desirable that the power bending thel tooth should be applied gradually-that is, it should not be applied by a sudden stroke or blow, which has a tendency to break the tooth rather than bend it, and which does not kill the elasticity of the metal before the tooth is relieved of the setting' force, and hence sets the teeth irregularly. It is also desirablethat the blade of the saw be supported near the setting-line of the teeth, and that the setting' force be applied on the side opposite that which is so supported.

The same invention in some of its essential features, butin a modified form, is shown by Figs. 12, 13, 14, and 15, the latter figure being a section of the other three. In this case the setting-block, rod, and jaw are all in one piece, the anvil being shown at o, the settingjaws at P, and the rod at D. The cam-lever Fin this case is the same as before, and so also is the frame-lever A and the setting-plate Q; but the spring C in this case is applied to the setting-block on the top of the frame-handle A, and by a forked end acting on the uuder side of a pin, e, in the head of the block, and as asubstitute for the different size settingjawsshown at Fig. 7, an adjustable gage, s, is used, the adjustment being effected by means of a screw, t;v but this modified form of the tool is not thought to be as good as the tool iirstabove described, and no`claim is made to any of these modifications beyond what is covered by the claims applicable to the tool rst-above The ordinary saw- 1 described, the modified -form of the tool and its various parts being considered as mere substitutes for the features of novelty covered by the following claims.

Having described my invention, Iclaim- 1. In a saw-set in which the setting force is applied at the base of the cutting side of each tooth, the combination of an adjustable sawsupporting plate, asettinganvil, asetting-j aw, and lever-handles, by means of which the setting force is applied, substantially as described.

2. In a saw-set, the lcombination of a variable-toothed setting-jaw with an adjustable saw-supporting plate, asetting-anvil, and lever-handles, substantially as described.

3. In a saw-set, the combination of a multiple-toothed jawcarrying rod, the adjustable multiple-toothed setting-jaw, with a cam-handle, a frame-handle, a reacting spring, an adjustable saw-supporting plate, and a settinganvil, substantially as described.

4. A saw-setting tool consisting of the following devices in combination, viz: a framehandle, A, having a socket, B, a setting-jaw- "carrying rod, a setting-jaw, a spring, c,vcam handle F, an adjustable saw-supporting plate,

Q, and a setting-anvil, substantially as de# scribed.

5. In a saw-set, a frame-handle provided with a socket, a setting-jaw-carrying rod fitting into said socket, a variable-toothed settingjaw, a cam-handle, and a spring, combined with an anvil and adjustable saw-supporting' plate, substantially'as described.

6. In asaw-set, the combination of a settingjaw-carrying rod, D, a variable-toothed setting-jaw adjustable around said rod, a spring, and cam handles for operating the rod and jaw, substantially as described.

7. In a saw-set, a `variable-toothed setting- 'jaw revoluble about an axis and set eccentrically thereto, substantially as described.

8. In a saw-set, a variable-toothed settingjaw revoluble about and free to move longitudinally upon a supporting-rod, combined with asocketed supporting-frame and a spring, substantially as described.

9. In a sawset, a variable toothed settingjaw notched, as shown, a supporting-rod having a projection adapted to it the notches -in the jaw, combined with aV spring and-a supporting-frame, substantially as described.

10. A saw-tooth-setting jaw-supporting rod slidable longitudinally in a frame, a variabletoothed setting-jaw, and a spring and handles' `for operating the jaw, all combined and arranged substantially as described. l

cHARLns M'onRiLL.

Witnesses J. 'EDGAR BULL, DAVID .Foncia ICO 

